VACUUM LUMBER PRESS-DRYER Russian patent published in 2005 - IPC

FIELD: machines or apparatus for drying solid materials by removing water from the materials.

SUBSTANCE: press-dryer comprises sealed vacuum chamber composed of two semi-housings connected by flexible connection means along perimeters thereof. Two cavities for limber receiving are defined inside the chamber. Axis of chamber rotation extends between the cavities and is directed along longitudinal limber axes. The chamber is provided with retainer to fix angular chamber position in vertical plane. The cavities may be alternately arranged from above and from below of above axis of chamber rotation. Space is created between inner surfaces of semi-housings and the cavities. Gas-permeable and heat-conductive filler is arranged inside the chamber so that the space is fully filled with the filler. The chamber has heating means to heat the filler and semi-housings, vacuum pump to evacuate chamber interior and air supply means. The press-dryer also comprises releasing means to disconnect semi-housings one from another.

EFFECT: increased quality of limber heating.

7 cl, 1 dwg